What types of extinguishing agents can be used for Bravo fires?

Bravo fires are classified as fires involving flammable liquids such as oil, gasoline, and other petroleum products. The ideal extinguishing agents for these types of fires are those that can effectively suppress the flames and prevent re-ignition. Aqueous Film Forming Foam (AFFF), Halon, Purple-K Powder (PKP), and carbon dioxide (CO2) are specifically designed for use on flammable liquid fires.

AFFF works by forming a blanket over the burning liquid, cutting off the oxygen supply and preventing the release of flammable vapors. Halon is a clean agent that interrupts the chemical reaction of combustion, making it effective without leaving residue. PKP is a dry chemical agent that smothers the fire by creating a barrier between the fuel and the oxygen. CO2 displaces oxygen, making it harder for the fire to continue burning.

These agents are specifically chosen for their effectiveness in tackling Bravo fires, which is why this choice stands out as the correct answer. In contrast, while water and foam can be used under certain circumstances, they are not as effective in all scenarios involving flammable liquids, such as in cases of certain fuels that can float on water. Therefore, the focus should be on agents that are specifically designed for